Prewetting of coal seams by water infusion is an essential measure for dust control at working faces. 煤层注水预湿是采煤工作面防尘的治本措施，添加湿润剂是改善煤层注水效果的重要途径。
In this paper,the effect of prewetting haydite on the performance of the compressive strength and shrinkage in high-strength and lightweight aggregate concrete was discussed. 研究了预湿陶粒对高强轻骨料混凝土强度和收缩性能的影响。
